Improvement in wire clothing for burring and other cylinders



F. P. PENDLETON. Wire Clothing for Burring and other Cylinders;

No. 202,370. Patented April 16,1878.

UNITED STATES PATENT. OFFICE.-

FRANK P. PENDLETON, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT lN WIRE CLOTHING FOR BURRING AND OTHER CYLINDERS.

Specification forming part of Letters Patent No. 202,370, dated April16, 1878; application filed August 14, 1877.

To all whom it may concern:

Be it known that I, FRANK P. PENDLETON, of Philadelphia, in the countyof Philadelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Wire Clothing for Burring and other Cylinders;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it pertains to make and use it, reference being had to theaccompanying drawings, which form part of this specification, in whichFigure l is a transverse sectional view of a cylinder, showing improvedwire in course of application. Fig. 2 is a transverse sectional view ofthe wire.

The object of my invention is to provide steel wire adapted to clothingcylinders for treating fibrous material.

Heretofore, when such cylinders were clothed with steel toothing, thelatter was obtained by cutting out steel rings from blanks or sheetsamethod that produced a great deal of waste. It was found impracticableto use steel wire for the purpose indicated, as such wire would notstand bending around the cylinder, but would break. Hence, when wire wasused for clothing, iron wire had to be adopted, as it-would readily bendwithout breaking.

The disadvantage of the steel rings was the expense which their originalconstruction entailed; the method, also, of fastening them on thecylinder was difficult and expensive. The disadvantage attending the useof iron wire is, that it soon wears out or becomes dull, hencenecessitating the reclothing or sharpening of the cylinder.

My improvement is designed to obviate these disadvantages by providingsteel wire which will not break when bent over the cylinder, and whichmay be put on the cylinder in the usual manner of iron wire-namely, byinserting it in spiral grooves formed in the cylinder, and turning inthe metal of the latter between the grooves against the base or sides ofsaid wire.

My invention accordingly consists of toothing or wire for clothingcylinders formed of steel, notched or nicked at the base of the teeth orback of the wire, so as to permit the latter to be bent over or aroundsaid cylinders without breaking.

Referring to the accompanying drawing, A designates a strand or lengthof steel wire, having teeth a a, of the usual orany suitableconstruction. B is the base or back of the wire, which is designed torest in a spiral groove, 0, formed in the face of a cylinder, (3. Saidbase or back is notched or nicked, as shown at b, which permits the wireto be bent around the cylinder without breaking, the metal removed bythe notching giving space for that left between the notches to close upwithout injurious compression or straining.

I have suggested that the wire is to be applied to a cylinder by beingintroduced into spiral grooves formed in the latter; but it may be puton in any other usual or suitable manner, as by being wound upon theplain face of the cylinder, and held in place by a packing of copperwire or other material.

The special character or shape of wire, as viewed in cross-section,forms no part of my invention, and the same may be triangular,shouldered, or otherwise.

The special shape of the notch in the back of the wire which I esteembest is a flaring or V shape, though the same may be varied by makingthe sides of the notches Wholly or partially parallel. In any event, Ido not confine myself to any special shape, the essence of the inventionconsisting in the formation of any notch or nick which will permit steelwire to be bent around a cylinder for treating fibrous material.

I have adopted the word wire to designate the subject of my invention,as this is the term by which thetoothed metal strip is generally knownand called by manufacturers and users.

What I claim as my invention is Steel wire or toothing for clothingcylinders for treating fibrous material, notched or nicked at the baseor back, substantially as shown and described, so as to permit such wireto be bent around cylinders without breaking, as set forth.

In testimony that Iclaiin the foregoing I have hereunto set my hand this10th day of August, 187 7.

FRANK P. PENDLETON.

Witnesses Gno. G. SHELMERDINE, M. DANL. CoNNoLLY.

